/*
* eXist Open Source Native XML Database
* Copyright (C) 2001-06 Wolfgang M. Meier
* wolfgang@exist-db.org
* http://exist.sourceforge.net
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id$
*/
package org.exist.xquery;
import java.util.List;
import org.exist.dom.QName;
/**
* Defines an internal module implemented in Java. The class maintains a collection of
* Java classes each being a subclass of {@link org.exist.xquery.Function}. For internal
* modules, a new function object is created from its class for each function reference in the
* XQuery script.
*
* @author Wolfgang Meier (wolfgang@exist-db.org)
*/
public interface InternalModule extends Module {
/**
* Returns the implementing class for the function identified
* by qname or null if it is not defined. Called by
* {@link FunctionFactory}.
*
* @param qname
* @return implementing class for the function
*/
public FunctionDef getFunctionDef(QName qname, int argCount);
/**
* Returns all functions defined in this module matching the
* specified qname.
*
* @param qname
* @return all functions defined in this module
*/
public List getFunctionsByName(QName qname);
}